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Finding the Fourth Proportional to 19,957.20, 27,541.11 and 11,005.02

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Solution

The fourth proportional to 19,957.20, 27,541.11 and 11,005.02 is: 15,187.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.20 : 27,541.11 = 11,005.02 : x
  2. Step 2: Convert to fraction form
    19,957.20/27,541.11 = 11,005.02/x
  3. Step 3: Cross multiply
    19,957.20x = 27,541.11 × 11,005.02
  4. Step 4: Simplify right side
    19,957.20x = 303,090,466.37
  5. Step 5: Solve for x
    x = 303,090,466.37/19,957.20
  6. Step 6: Final answer
    x = 15,187.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.